Ultra high performance light sources based on organic field activated devices (FADs)

摘要标题：摘要：非技术性：如果美国家庭和办公室的照明效率可以提高50%，到2025年，全国将节省1150亿美元，减轻对133个新发电站的需求，消除2.58亿公吨的碳，每年节省273 TWh的能源。 而这只是为了房间照明！但是，如果这一增长更大：100%或200%，对世界经济的影响及其所有应用可能是惊人的！ 这怎么可能呢？ 在这个项目中，一种令人兴奋的利用有机材料制造光的新方法被研究，这种方法比今天使用的方法效率要高得多。该方法使用新引入的纳米工程有机薄膜灯架构，并利用谐振AC电场驱动灯，该谐振AC电场不仅刺激光发射，而且引入允许控制内部量子效率的内部磁场。 因此，通常与流入和流出结构的电流的直接流动相关联的损耗通过无功功率耦合和将灯的发射器与电触点绝缘的材料的适当选择来管理，并且内部损耗通过磁场来管理。 这些设备的初步结果是有趣的，表明非凡的效率与高亮度相结合。 但这一原理的效率和性能究竟能被推到什么程度仍然是个未知数。 该计划将为这种理解奠定基础，并有可能推动廉价、高效、寿命长的超高性能照明革命，甚至挑战无机发光二极管（LED）在市场上的霸主地位。 技术支持：该研究将为理解交流耦合有机场致电致发光器件发光的基本机理建立一个框架。这项工作的重点将是检查的基本物理的交流场诱导激子形成所需的推动性能。 具体来说，激子产生速率将与内部“电荷发生器”（如纳米颗粒）的性质有关。单壁碳纳米管、纳米片和量子点）或靠近发射体放置的小分子。 三重态收获将在场诱导光产生中得到证明。 这将与通过纳米添加剂介导的纳米天线效应对共振能量转移效率的改变有关。最后，将显示内部磁场和去激发路线的修改，改变单三重态人口动态之间的直接相关性。 这项工作的结果将建立必要的原则，以平衡这些类型的设备中的掺杂剂，磁相互作用和内部能量转移速率，推动其功率效率和亮度的极限。然而，该计划也有可能在基于有机物的高性能磁光器件中设定新的方向，基于使用内部磁场控制激发寿命。 这将为光开关、显示器、有机激光器和许多其他此类应用提供机会。

Abstract title: Development of Ultra-High Efficiency Lighting Using AC-driven Organic Devices Abstract:Non-technical: If the efficiency of lighting in US homes and offices could be increased by 50%, it would save $115 Billion nationally by 2025, alleviate the need for 133 new power stations, eliminate 258 million metric tons of carbon and save 273TWh/year in energy. And this is just for room lighting! But, if that increase was larger: 100% or 200%, the impact to the world economy, with all of its applications, could be staggering! How could this be done? In this program an exciting new approach to using organic materials in making light is examined-one that can be far more efficient than the methods used today. The approach uses a newly introduced, nanoengineered, organic thin film lamp architecture and drives the lamp with a resonant AC-electric field which not only stimulates light emission, but introduces internal magnetic fields that allow control over internal quantum efficiencies. So, losses typically associated with the direct flow of current into and out of the structure are managed through reactive power coupling and the proper choice of materials that insulate the emitter of the lamp from the electrical contacts, and internal losses are managed by the magnetic field. Preliminary results from these devices are intriguing, suggesting extraordinary efficiencies combined with high brightness. But exactly how far the efficiency and performance of the principle can be pushed is still unknown. This program will set the foundations of that understanding and potentially drive a revolution in ultra-high performance lighting that is cheap, efficient, and long lived, challenging even the inorganic light emitting diode (LED) for supremacy in the marketplace. Technical: The proposed research will establish a framework for understanding the fundamental mechanisms of light emission in the AC-coupled, organic, field-induced electroluminescent devices. The focus of the work will be an examination of the basic physics of AC field-induced exciton formation required to push forward performance. Specifically, exciton creation rates will be tied to the properties of internal "charge generators"such as nanoparticles (ie. single walled carbon nanotubes, nanoplatelettes, and quantum dots) or small molecules placed proximate to the emitters. Triplet harvesting will be demonstrated in field-induced light generation. This will be tied to modifications of resonant energy transfer efficiency through nanoantennae effects mediated through nanoparticle additives. Finally, a direct correlation between internal magnetic fields and the modification of de-excitation routes that alter single to triplet population dynamics will be shown. The outcome of this work will establish the principles necessary to balance dopants, magnetic interactions and internal energy transfer rates in these types of devices generally, pushing the very limits of their power efficiency and brightness. However, the program also has the potential to set new directions in high performance magneto-optic devices based in organics, based on control over excitation lifetimes using internal magnet fields. This would open opportunities in optical switching, displays, organic lasers, and a host of other such applications.